ENGLISH 简体中文 日本語 한국어  

    Login | Register 


   
 
Enter keywords or part number    



MAX7042
308MHz/315MHz/418MHz/433.92MHz Low-Power, FSK Superheterodyne Receiver


  QuickView     Technical Documents     Ordering Info     More Information     User Comments (0)     All  
Data Sheet
FULL DATA SHEET (PDF, 304kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


Description
The MAX7042 fully integrated, low-power, CMOS superheterodyne RF receiver is designed to receive frequency-shift-keyed (FSK) data at rates up to 66kbps nonreturn-to-zero (NRZ) (33kbps Manchester). The MAX7042 requires only a few external components to realize a complete wireless RF receiver at 308, 315, 418, and 433.92MHz.

The MAX7042 includes all the active components required in a superheterodyne receiver including a low-noise amplifier (LNA), an image-rejection (IR) mixer, a fully integrated phase-locked loop (PLL), local oscillator (LO), 10.7MHz IF limiting amplifier with received-signal-strength indicator (RSSI), low-noise FM demodulator, and a 3V regulator. Differential peak-detecting data demodulators are included for baseband data recovery.

The MAX7042 is available in a 32-pin thin QFN and is specified over the automotive -40°C to +125°C temperature range.

Key Features   Applications/Uses
  • +2.4V to +3.6V or +4.5V to +5.5V Single-Supply Operation
  • Four User-Selectable Carrier Frequencies 308, 315, 418, and 433.92MHz
  • -110dBm RF Input Sensitivity at 315MHz
  • -109dBm RF Input Sensitivity at 433.92MHz
  • Fast Startup (< 250µs)
  • Small 32-Pin Thin QFN Package
  • Low Operating Supply Current
    • 6.2mA Continuous
    • 20nA Power-Down
  • Integrated PLL, VCO, and Loop Filter
  • 45dB Integrated Image Rejection
  • Selectable IF BW with External Filter
  • Positive and Negative Peak Detectors
  • RSSI Output
  • Underwriters Laboratories (UL®) Recognized

 
  • Home and Office Lighting Control
  • Home Automation
  • Local Telemetry Systems
  • Remote Keyless Entry (RKE)
  • Remote Sensing
  • Security Systems
  • Smoke Alarms
  • Tire-Pressure Monitoring (TPM)

    Key Specifications:   ISM RF Receivers
    Part Number Ref. Clock Freq (MHz) IF Output Freq. (MHz) Supply Voltage (V) Supply Current (mA) Applications Solutions Band/Freq (MHz) Features Footprint (mm x mm) Package Smallest Available Package (max w/pins) (mm2) Industry Qualified RoHS Available Price**
    MAX7042  <=17.634 10.7 2.4 to 3.6
    4.5 to 5.5
    6.2
    ISM
    RKE
    TPM
    Selectable 308/315/418/433.92MHz 300 to 450
    -110dBm FSK sensitivity
    -40C to +125C operation
    6.2mA receive current
    >45dB Image Rejection
    On-Chip PLL, VCO and Loop Filter
    Operates down to 2.4V
    Operates from Single 3.3V or 5.0V Supplies
    5.0 x 5.0 TQFN/32 26 Automotive - AECQ100
    Automotive - General
    Yes $2.10 @ 1k
    See All ISM RF Receivers (7)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX7042: Typical Application Circuit
    Typical Application Circuit

    Application Notes
  • Application Note 3395: Requirements of Remote Keyless Entry (RKE) Systems - MAX7042

    Evaluation Kits
    none

    Reliability Reports
  • Reliability Report: MAX7042.pdf
  • Show FIT data for:
  • Underwriters Laboratories (UL®) Recognized

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-4 of 4

    MAX7042 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7042EVKIT-315    


    Land Pattern: Not Available

    See data sheet
    MAX7042EVKIT-433    


    Land Pattern: Not Available

    See data sheet
    MAX7042ATJ+  
    TQFN;32 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0001 (PDF)
    Use pkgcode/variation: T3255+3*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7042ATJ+T  
    TQFN;32 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0001 (PDF)
    Use pkgcode/variation: T3255+3*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • New Product Press Release 2005-06-06 
  • Product Family Ad: Download

    Related Products
    MAX1479 300MHz to 450MHz Low-Power, Crystal-Based +10dBm ASK/FSK Transmitter

    Didn't Find What You Need?
  • Next Day Product Selection Assistance from Applications Engineers
  • Parametric Search
  • Applications Help
  •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

     Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

     Price and Availability 
     Samples 
     Buy Online 
     Package Information 
     Lead-Free Information 

     Related Products 
     Notes and Comments 
     Evaluation Kits 

    Document Ref.: 19-3704; Rev 1; 2007-04-10
    This page last modified: 2008-08-29


            •         •         •     Privacy Policy     •     Legal Notices

        Copyright © 2009 by Maxim Integrated Products